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1、根区局部控水无压地下灌溉对番茄生理特性及产量、品质的影响王燕1，蔡焕杰1，陈新明1，2，郑健1（1西北农林科技大学水利与建筑工程学院，杨凌712100；2塔里木大学，阿拉尔市843300）摘要：【目的】探明无压灌溉不同供水水平对作物根区土壤水分条件、番茄的形态指标、水分生理指标和光合生理指标及产量、品质和水分利用效率的影响。【方法】以东圣一号番茄为试验材料，在日光温室进行了灌溉试验研究，试验共设3个供水水平，压力水头分别为0、3和6cm，并采用DPS分析软件对数据进行了显著性分析。【结果】不同供水水平对番茄的生长发育及产量品
2、质有显著的影响。6cm处理番茄产量最高，3cm处理次之，0cm处理最低；但番茄的水分利用效率却是0cm＞3cm＞6cm处理；0cm处理下番茄的糖酸比和可溶性蛋白含量最高，Vc含量降幅也不大；相对于0cm处理，6cm和3cm处理的Vc含量分别提高了19.2%和6.8%。【结论】根区局部控水无压地下灌溉能够满足番茄需水量，不同供水压力对番茄根区土壤水分、生理特性和产量影响不同，同时能够协调番茄糖酸之间的比例，提高番茄的糖酸比、可溶性蛋白含量和Vc含量，使番茄能更加美味可口，起到了以水调质的功效，值得在农业生产中推广。关键词：无压
3、灌溉；番茄；生长发育；生理特性；产量；品质EffectsofCropRootzoneNon-pressureSubirrigationonTomatoPhysiologicalCharacteristics,YieldandQualityWANGYan1,CAIHuan-jie1,CHENXin-ming1,2,ZHENGJian1(1CollegeofWaterResourcesandArchitecturalEngineering,NorthwestSci-TechUniversityofAgricultureandFo
4、restry,Yangling712100；2TatimUniversity,Ala843300)Abstract：【Objective】Wemeanttostudytheeffectsofdifferentwaterelevationsofnon-pressuresubirrigationonsomeindexesoftomato,includingsoilwaterstatusaroundcroprootzone,morphologicalindexes,physiologicalindexes,photosynthet
5、icindexes,yield,qualityandwateruseefficiency.【Method】WiththematierialsofNo.1DongShengtomato,wedidtheirrigationexperimentinthegreenhouse,andmadesignificantanalysisonexperimentdatathroughthesoftwareofDPS.【Result】Differentwaterelevationshadsignificantinfluenceonthegro
6、wth,yieldandqualityoftomato.Theyieldof6cmtreatmentwasthehighest,3cmtreatmentwasinferiorto6cmtreatment,0cmtreatmentwasthelowest.ButtheWUEwas0cm>3cm>6cm.Thesugar/acidandsolubleproteinwasthehighestunderthetreatmentof0cm,andthecontentofVcdidn’tdecreaseverymuch.Compared
7、to0cmtreatment,Vccontentof6cmand3cmincreasedrespectivelyby19.2%and6.8%.【Conclusion】Thisirrigationmethodscansatisfytheneedsoftomatogrowth,differentwaterelevationshavedifferentinfluenceontomatosoilwaterstatusaroundcroprootzone,physiologicalcharacteristicsandyield.Ita
8、lsoharmonizedthepercentagebetweensugarandacid,increasedthecontentofsolubleproteinandVc,andmadetomatomoredelicious.Theirrigationmethodscanimprovet
